Operating instructions
RSD-FI-Ex2
Power supply
The modules are powered via the Terminal Base (terminals 34+, 35-); via the terminals
50+ and 51 it is possible to daisy chain to the next module (see Figure 4). The maximum
intrinsically safe values must not be exceeded.
3V
6V
V+
N
50
500
N
8V
8V
N
500
50
N
mV
mV
mV
mV
Channel 0 - Frequency input
Channel 1 - Frequency input
nc
R0
R0
nc
N
50
500
N
8V
8V
N
500
50
mV
mV
NO
NC
mV
mV
Channel 0 - Gate input
Channel 1 - Gate input
nc
nc
nc nc nc nc nc nc nc
R0
R1
Com
Com
Figure 4
Installation
This module must not be exposed directly to the environment. Provide a separate
enclosure with a protection factor of at least IP54; the IS-RPI modules themselves have a
protection factor of IP 20. Do not remove the Cover plug on the open side of the backplane
bus connection.
Safe area mounting
The module must not be used in an intrinsically safe environment after it has been exposed
to non-intrinsically safe signals.
Repair
This module is not field-repairable. Any attempt to open this module will void the warranty
and IS certification. If repair is necessary, return this module to the factory.
ESD
Protect the IS-RPI modules against electrostatic charge. Post a sign near this module:
Attention! Avoid electrostatic charge.
Inputs
Each input can be operated from a NAMUR sensor, a mechanical contact, a VORTEX or
a mV input. Do not apply any non-intrinsically safe signals to this module.
The channels in this module are electrically connected to each other and have a common
plus-line.
Important: When interconnecting several lines, you must consider the total accumulated
power and check for intrinsic safety.
Subject to reasonable modifications due to technical advances.
3
Pepperl+Fuchs Group • Tel.: Germany +49-621-776-0 • USA +1-330-4253555 • Singapore +65-67-799091 • Internet www.pepperl-fuchs.com
V+
6V
3V
Ro w 1
Ro w 2
Ro w 3
N
nc
R1
R1
nc
NO
NC
nc nc
nc
Copyright Pepperl+Fuchs, Printed in Germany
Electromagnetic compatibility
To achieve the EMC protection class it is necessary to use shielded multicore cable and
to have a shield for each channel (at NAMUR signals multicore cable only!). The isolation
of each wire has to be higher than 500 V.
At operations together with magnetic pickups and Vortex signals (not at NAMUR-signals!)
at frequencies above 1 kHz the channel ground must be connected to the housing ground;
consider the national installation regulations of the respective countries.
Ambient temperature
The Ambient temperature of the module (-20 °C...+70 °C) has to be considered, especially
when the modules are mounted in a cabinet where the internal temperature is increased
by the power dissipation of the modules itself.
If the intrinsically safe electrical circuits are led into areas with inflammable dust the
following requirements have to be fulfilled.
Zone 20
The intrinsically safe electrical circuits (frequency input und gate input ch0/ch1) may be led
into areas with inflammable dust (Zone 20). It has to be guaranteed, however, that the
devices, to which these intrinsically safe electrical circuits are connected, fulfil the
requirements for category 1D and are marked accordingly.
All other intrinsically safe electrical circuits may not be led into Zone 20.
Zone 21
All other intrinsically safe electrical circuits may also be led into areas with inflammable
dust (Zone 21). It has to be guaranteed, however, that the devices, to which these
intrinsically safe electrical circuits are connected, fulfil the requirements for category 2D
and are marked accordingly. Of course, the intrinsically safe electrical circuits (frequency
input und gate input ch0/ch1) may under the same conditions also be led into Zone 21.
Zone 22
When the module is installed in Zone 22 the following cabinets have to be used:
IVK-ISRPI-V16LC
IVK-ISRPI-V8HYW
IVK-ISRPI-V8LC
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany +49-621-776-0 • USA +1-330-4253555 • Singapore +65-67-799091 • Internet www.pepperl-fuchs.com
Operatung instructions
RSD-FI-Ex2
Copyright Pepperl+Fuchs, Printed in Germany
4